package com.zretc.dao;

import com.zretc.entity.Message;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

/**
 * Created by Administrator on 2020/8/22.
 */
@Mapper
@Repository
public interface ChatMapper {
     List<String> findUserByCondition(String userId);
     void  insertMsg(Message msg);
}
